I have a Mesh based on 3 x M9 plus (one as base router) and 3 x M5 decos.

the deco app is constantly showing all satellite decos as offline, rebooting the network shows them for a while then they go offline again - however the Wi-Fi mesh is still working as devices remain connected.

all firmware is updated and tried changing decos around

this is really frustrating as it worked just fine for well over a year.

its the same in the iPhone and ipad app, so not a local app issue

thanks for any help